class_docstr: Conditionally complement the setup.cfg options file.
  
  This class configures the include_dirs, library_dirs, libraries
  options as required by the system. Most of the configuration happens
  in finalize_options() method.
  
  If you want to set up the build step for a peculiar platform, add a
  method finalize_PLAT(), where PLAT matches your sys.platform.
docstr: Finalize build system configuration on GNU/Linux platform.
docstr_tok: ["Finalize","build","system","configuration","on","GNU\/Linux","platform","."]
code: def finalize_linux(self):
      """Finalize build system configuration on GNU/Linux platform."""
      # tell piro that GCC is fine and dandy, but not so MS compilers
      for extension in self.extensions:
          extension.extra_compile_args.append(
              "-Wdeclaration-after-statement"
          )
  
imports: import os
  import sys
  import re
  import subprocess
  from setuptools import setup, Extension
  from distutils.command.build_ext import build_ext
  from distutils.ccompiler import get_default_compiler
  from distutils.errors import CompileError
  import configparser
label_desc: Use image node_id 10 for calling the psycopg_build_ext obj's underlying member method code with example usage: obj.finalize_linux() without return types